825783430 has 16 divisors (see below), whose sum is σ = 1486749024. Its totient is φ = 330238080.

The previous prime is 825783403. The next prime is 825783433. The reversal of 825783430 is 34387528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825783433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63679 + ... + 75541.

It is an arithmetic number, because the mean of its divisors is an integer number (92921814).

Almost surely, 2^825783430 is an apocalyptic number.

825783430 is a deficient number, since it is larger than the sum of its proper divisors (660965594).

825783430 is a wasteful number, since it uses less digits than its factorization.

825783430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18831.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 825783430 is about 28736.4477623801. The cubic root of 825783430 is about 938.1855105951.

The spelling of 825783430 in words is "eight hundred twenty-five million, seven hundred eighty-three thousand, four hundred thirty".